package com.zyh.scs.admin.utils.jd;

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.*;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.util.EntityUtils;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 *
 *
 * @author hwh
 */
@Slf4j
public class HttpUtils {

	/**
	* get
	*
	* @param host
	* @param path
	* @param method
	* @param headers
	* @param querys
	* @return
	* @throws Exception
	*/
	public static HttpResponse doGet(String host, String path, String method,Map<String, String> headers,Map<String, String> querys)throws Exception {
		HttpClient httpClient = wrapClient(host);
		HttpGet request = new HttpGet(buildUrl(host, path, querys));
		for (Map.Entry<String, String> e : headers.entrySet()) {
			request.addHeader(e.getKey(), e.getValue());
		}
		return httpClient.execute(request);
	}

	/**
	* post form
	*
	* @param host
	* @param path
	* @param method
	* @param headers
	* @param querys
	* @param bodys
	* @return
	* @throws Exception
	*/
	public static HttpResponse doPost(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,Map<String, String> bodys)throws Exception {
		method = "POST";
		HttpClient httpClient = wrapClient(host);
		HttpPost request = new HttpPost(buildUrl(host, path, querys));
		for (Map.Entry<String, String> e : headers.entrySet()) {
			request.addHeader(e.getKey(), e.getValue());
		}
		if (bodys != null) {
		List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>();
		for (String key : bodys.keySet()) {
			nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key)));
		}
		UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");
		formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8");
		request.setEntity(formEntity);
		}
		return httpClient.execute(request);
	}

	/**
	* Post String
	*
	* @param host
	* @param path
	* @param method
	* @param headers
	* @param querys
	* @param body
	* @return
	* @throws Exception
	*/
	public static HttpResponse doPost(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,String body)throws Exception {
		HttpClient httpClient = wrapClient(host);
		HttpPost request = new HttpPost(buildUrl(host, path, querys));
		for (Map.Entry<String, String> e : headers.entrySet()) {
			request.addHeader(e.getKey(), e.getValue());
		}
		if (StringUtils.isNotBlank(body)) {
			request.setEntity(new StringEntity(body, "utf-8"));
		}
		return httpClient.execute(request);
	}

	/**
	* Post stream
	*
	* @param host
	* @param path
	* @param method
	* @param headers
	* @param querys
	* @param body
	* @return
	* @throws Exception
	*/
	public static HttpResponse doPost(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,byte[] body)throws Exception {
		HttpClient httpClient = wrapClient(host);
		HttpPost request = new HttpPost(buildUrl(host, path, querys));
		for (Map.Entry<String, String> e : headers.entrySet()) {
			request.addHeader(e.getKey(), e.getValue());
		}
		if (body != null) {
			request.setEntity(new ByteArrayEntity(body));
		}
		return httpClient.execute(request);
	}

	/**
	* Put String
	* @param host
	* @param path
	* @param method
	* @param headers
	* @param querys
	* @param body
	* @return
	* @throws Exception
	*/
	public static HttpResponse doPut(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,String body)throws Exception {
		HttpClient httpClient = wrapClient(host);
		HttpPut request = new HttpPut(buildUrl(host, path, querys));
		for (Map.Entry<String, String> e : headers.entrySet()) {
			request.addHeader(e.getKey(), e.getValue());
		}
		if (StringUtils.isNotBlank(body)) {
			request.setEntity(new StringEntity(body, "utf-8"));
		}
		return httpClient.execute(request);
	}

	/**
	* Put stream
	* @param host
	* @param path
	* @param method
	* @param headers
	* @param querys
	* @param body
	* @return
	* @throws Exception
	*/
	public static HttpResponse doPut(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,byte[] body)throws Exception {
		HttpClient httpClient = wrapClient(host);
		HttpPut request = new HttpPut(buildUrl(host, path, querys));
		for (Map.Entry<String, String> e : headers.entrySet()) {
			request.addHeader(e.getKey(), e.getValue());
		}
		if (body != null) {
			request.setEntity(new ByteArrayEntity(body));
		}
		return httpClient.execute(request);
	}

	/**
	* Delete
	*
	* @param host
	* @param path
	* @param method
	* @param headers
	* @param querys
	* @return
	* @throws Exception
	*/
	public static HttpResponse doDelete(String host, String path, String method,Map<String, String> headers,Map<String, String> querys)throws Exception {
		HttpClient httpClient = wrapClient(host);
		HttpDelete request = new HttpDelete(buildUrl(host, path, querys));
		for (Map.Entry<String, String> e : headers.entrySet()) {
			request.addHeader(e.getKey(), e.getValue());
		}
		return httpClient.execute(request);
	}

	private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException {
		StringBuilder sbUrl = new StringBuilder();
		sbUrl.append(host);
		if (!StringUtils.isBlank(path)) {
			sbUrl.append(path);
		}
		if (null != querys) {
			StringBuilder sbQuery = new StringBuilder();
			for (Map.Entry<String, String> query : querys.entrySet()) {
				if (0 < sbQuery.length()) {
					sbQuery.append("&");
				}
				if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {
					sbQuery.append(query.getValue());
				}
				if (!StringUtils.isBlank(query.getKey())) {
					sbQuery.append(query.getKey());
					if (!StringUtils.isBlank(query.getValue())) {
						sbQuery.append("=");
						sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));
					}
				}
			}
			if (0 < sbQuery.length()) {
				sbUrl.append("?").append(sbQuery);
			}
		}
		return sbUrl.toString();
	}

	private static HttpClient wrapClient(String host) {
		HttpClient httpClient = new DefaultHttpClient();
		httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT,1000);//连接时间
		httpClient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT,5000);//数据传输时间
		if (host.startsWith("https://")) {
			sslClient(httpClient);
		}
		return httpClient;
	}

	private static void sslClient(HttpClient httpClient) {
		try {
			SSLContext ctx = SSLContext.getInstance("TLS");
			X509TrustManager tm = new X509TrustManager() {
				public X509Certificate[] getAcceptedIssuers() {
					return null;
				}
				public void checkClientTrusted(X509Certificate[] xcs, String str) {
				}
				public void checkServerTrusted(X509Certificate[] xcs, String str) {
				}
			};
			ctx.init(null, new TrustManager[] { tm }, null);
			SSLSocketFactory ssf = new SSLSocketFactory(ctx);
			ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
			ClientConnectionManager ccm = httpClient.getConnectionManager();
			SchemeRegistry registry = ccm.getSchemeRegistry();
			registry.register(new Scheme("https", 443, ssf));
		} catch (KeyManagementException ex) {
			throw new RuntimeException(ex);
		} catch (NoSuchAlgorithmException ex) {
			throw new RuntimeException(ex);
		}
	}
	 /**
     * 发送form表单类型的Post请求
     *
     * @param url       发送的url
     * @param headerMap 请求头参数集合 key参数名 value为参数值
     * @param bodyMap   请求参数集合 key参数名 value为参数值
     */
    public static String sendFormPost(String url, Map<String, String> headerMap, Map<String, String> bodyMap) {

        //创建post请求对象
        HttpPost post = new HttpPost(url);
        try {
            //创建参数集合
            List<BasicNameValuePair> list = new ArrayList<>();
            //添加参数
            if (bodyMap != null) {
                for (String str : bodyMap.keySet()
                        ) {
                    list.add(new BasicNameValuePair(str, bodyMap.get(str)));
                }
            }
            //把参数放入请求对象，，post发送的参数list，指定格式
            post.setEntity(new UrlEncodedFormEntity(list, "UTF8"));

            if (headerMap != null) {
                for (String str : headerMap.keySet()
                        ) {
                    post.addHeader(str, headerMap.get(str));
                }
            }

            CloseableHttpClient client = HttpClients.createDefault();
            //启动执行请求，并获得返回值
            CloseableHttpResponse response = client.execute(post);
            //得到返回的entity对象
            HttpEntity entity = response.getEntity();
            //把实体对象转换为string
            String result = EntityUtils.toString(entity, "UTF8");
            //为防止频繁调用一个接口导致接口爆掉，每次调用完成后停留100毫秒
            //返回内容
            return result;
        } catch (Exception e1) {
            log.error("调用京东确认支付接口报错", e1);
            return "";
        }
    }

}